Enterprise "You click, we pick"

Has anyone done this option. I can redeem 2 extra free days with my points using this feature as it is 400 points a day compared to 550 a day on the mid size.

If it was just me, I would do it in a heartbeat, but I will have wife and our 9 month old with me. With car seat and luggage for a week could be a tight fit in a compact.

Anyone had any luck with getting something larger than a Ford Bingo? I still have one free upgrade left this year based on my status, not sure if I could use it doing the click and pick option.